Dust Digger is a classic Boulderdash clone!
Quite nice graphics, it only occupies 83kb. If I could make any criticism it would be that it used the CE2.11 interface with the task bar at the bottom of the screen.

Some will complain that you can only move with the stylus. The menus are in German might be a bit awkward, but since there are only a few options you shouldn't have any problem learning by heart what Neues Spiel or Beenden mean